Many of the leading figures in contemporary North American and British art and cultural criticism were editors, designers or contributors to Aspen. The magazine has remained of interest to students of the artistic ferment of the late 1960s; extensive documentation of Aspen's contents is available online at UbuWeb
Issue #3 was designed by Andy Warhol and David Dalton. Published in December, 1966, the issue is housed in a box with graphics based on the packaging of "Fab" laundry detergent. Among its contents were a flip-book based on Warhol's film "Kiss," and Jack Smith's film "Buzzards Over Bagdad," a flexidisc by John Cale of the Velvet Underground, and a "ticket book" with excerpts of papers delivered at the Berkeley conference on LSD by Timothy Leary and others.
Issue #4, designed by Quentin Fiore, showcased the ideas of the Canadian cultural theorist Marshall McLuhan. Highlights of subsequent issues include critical essays by Roland Barthes and Susan Sontag; a multi-part cardboard sculpture by Tony Smith; sound recordings with accompanying printed scores by John Cage, Morton Feldman and La Monte Young; films by Robert Rauschenberg and Hans Richter; a recording by Yoko Ono and John Lennon, and a pre-publication excerpt of J. G. Ballard's novel Crash.
Issue #10 was devoted to Asian art and philosophy. Published in 1971, it was the final issue of the magazine.